from within

[Hayk]

is the following correct?

(1) smth. from within a>b range.

[Hayk]

I wonder nobody wants to helps?

What a strange forum...

People where are you???

[Casiopea]

is the following correct?

(1) smth. from within a>b range.

something from within a is greater than b range?

It just doesn't make any sense to me, sorry.

[Hayk]

Possibly I did not depict the problem correctly. Here please consider more detailed explanation:

Phonons are characterized by quantity called wave-vector which is symbolized by q.
Quantity q changes in some range e.g. 0<q<p.
And I want to say that phonons from within q<a range (where 0<a<p) have some specific properties.

So this is the context, because there are different possibilities to express the same idea and I want to choose the correct one for my very context:

Phonons from within q<a range
Phonons from q<a range
Phonons from range q<a
Phonons in the range q<a

I know that “in the range q<a” sometimes is used, but in my opinion that construct is not in exact logical coherence with idea, intended to be expressed in other parts of the paper I am working over, to focus the attention of the reader and make perception as clear as possible.
In the article I am currently working at the mentioned construct have to be repeated for 15-20 times, that is why I need help to choose correct frames of usage not to have problems with editor in future.

[Casiopea]

...phonons from within q<a range (where 0<a<p) have some specific properties.

Phonons from within (the) q<a range.

[Hayk]

Thanks a lot Lady!

[Casiopea]

You're welcome, Man!